Mayfly nymph



FIG. 1 is a top plan view of a Mayfly nymph embodying our new design;

FIG. 2 is a side elevational view thereof;

FIG. 3 is a bottom plan view thereof;

FIG. 4 is a left end elevational view of FIG. 2; and

FIG. 5 is a right end elevational view of FIG. 2.

The ornamental design for a Mayfly nymph, as shown and described.